In love..

Im with this guy.... I literally love him so much i cant even like put it in words its so weird. With other relationships i was so lost and stuff i thought that i loved them but as soon as they left me i realized that shit wasnt love but with him, he actually cares. I feel so comfortable around him, i dont have to wear nice fancy clothes, i dont have to wear makeup, i dont have to wear my hair any type of way and i just feel like ive known him my whole life. I hate for this to sound corny but i couldnt imagine living without him.... Ive gone through alot and when im with him the whole world just goes on mute and he makes my life so happy. I really really love him and im scared to lose someone like him. Any tips??